"The official broadcast of 5G in Ho Chi Minh City is an important milestone in Viettel’s strategy to make Vietnam one of the first countries in the world to commercialize 5G services," Viettel deputy director Tao Duc Thang said in a statement.

The 10 stations will be used by Viettel, the nation’s largest telecom firm, to comprehensively check and assess its 5G service before launching it commercially next year.

Military-run Viettel installed the first 5G station in Hanoi early this year and made the first 5G phone call in May. It was the first firm in the country to receive permission to trial 5G services in January, followed by MobiFone.

Last November, Information and Communication Minister Nguyen Manh Hung said at a conference that Vietnam should test 5G in 2019 and ensure nationwide coverage by 2020.

"Vietnam should be one of the first countries to launch the network, at least in Hanoi and HCMC," he had said. The country had been one of the last in Southeast Asia to roll out 4G services.

5G is said to offer speeds 100 times faster than 4G, primarily used for smartphones and other similar devices. 5G is also expected to support new applications like remote medical procedures and autonomous driving.